two subdomain in fluid domain does not word (CFX)

maxwellandi · November 24, 2012, 03:55

hello!
2 Subdomain ,Volume force(ff) and volume heat source(h1) are load in fluid domain(slag). if only one Subdomain is load,the result of speed and temperature is what i think right. but, 2 Subdomain are load together, the result is wrong ,why

thanks for any relay!!

------------------
SUBDOMAIN: Subdomain 1
Coord Frame = Coord 0
Location = SLAG
SOURCES:
EQUATION SOURCE: energy
Option = Source
Source = h1
Source Coefficient = 1 [W m^-3 K^-1]
END
END
END
SUBDOMAIN: ff
Coord Frame = Coord 0
Location = SLAG
SOURCES:
MOMENTUM SOURCE:
GENERAL MOMENTUM SOURCE:
Momentum Source X Component = x2
Momentum Source Y Component = y2
Momentum Source Z Component = z2
Option = Cartesian Components

--------------------

ghorrocks · November 25, 2012, 04:09

I have no idea what the problem could be. It might be a bug in CFX. Are you using V14 of CFX?

maxwellandi · November 25, 2012, 20:16

ansys cfx(v13),
there is a bug in cfx?

ghorrocks · November 25, 2012, 21:00

No idea, you would have to report it to CFX to find out. But the first thing they will say is upgrade to the current version - so it is pointless doing anything about it until you update to V14.

evcelica · November 28, 2012, 15:45

Can't you put both sources in one subdomain? Or one as a source in the domain itself and one in the subdomain? Maybe this would fix the problem?

November 24, 2012, 03:55	two subdomain in fluid domain does not word (CFX)	#1
maxwellandi New Member fubin liu Join Date: Apr 2012 Posts: 2 Rep Power: 0	hello! 2 Subdomain ,Volume force(ff) and volume heat source(h1) are load in fluid domain(slag). if only one Subdomain is load,the result of speed and temperature is what i think right. but, 2 Subdomain are load together, the result is wrong ,why thanks for any relay!! ------------------ SUBDOMAIN: Subdomain 1 Coord Frame = Coord 0 Location = SLAG SOURCES: EQUATION SOURCE: energy Option = Source Source = h1 Source Coefficient = 1 [W m^-3 K^-1] END END END SUBDOMAIN: ff Coord Frame = Coord 0 Location = SLAG SOURCES: MOMENTUM SOURCE: GENERAL MOMENTUM SOURCE: Momentum Source X Component = x2 Momentum Source Y Component = y2 Momentum Source Z Component = z2 Option = Cartesian Components --------------------

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November 25, 2012, 04:09		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	I have no idea what the problem could be. It might be a bug in CFX. Are you using V14 of CFX?

November 25, 2012, 20:16		#3
maxwellandi New Member fubin liu Join Date: Apr 2012 Posts: 2 Rep Power: 0	ansys cfx(v13), there is a bug in cfx?

November 25, 2012, 21:00		#4
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	No idea, you would have to report it to CFX to find out. But the first thing they will say is upgrade to the current version - so it is pointless doing anything about it until you update to V14.

November 28, 2012, 15:45		#5
evcelica Senior Member Erik Join Date: Feb 2011 Location: Earth (Land portion) Posts: 1,167 Rep Power: 23	Can't you put both sources in one subdomain? Or one as a source in the domain itself and one in the subdomain? Maybe this would fix the problem?